//
//  UIViewController+DF.h
//  换换圈
//
//  Created by 艾柯斯 on 14-11-7.
//  Copyright (c) 2014年 艾柯斯. All rights reserved.
//


#import <UIKit/UIKit.h>

@interface UIViewController (DF)


- (void)addToRootViewController;
- (void)dismiss;

+ (UIViewController *)topViewController;
+ (UIViewController *)rootViewController;
- (void)removeChildViewControllers;
@end
